function RedirectToCachedFile() { global $phpThumb, $PHPTHUMB_CONFIG; $nice_cachefile = str_replace(DIRECTORY_SEPARATOR, '/', $phpThumb->cache_filename); $nice_docroot = str_replace(DIRECTORY_SEPARATOR, '/', rtrim($PHPTHUMB_CONFIG['document_root'], '/\\')); $parsed_url = phpThumb_functions::ParseURLbetter(@$_SERVER['HTTP_REFERER']); $nModified = filemtime($phpThumb->cache_filename); if ($phpThumb->config_nooffsitelink_enabled && @$_SERVER['HTTP_REFERER'] && !in_array(@$parsed_url['host'], $phpThumb->config_nooffsitelink_valid_domains)) { $phpThumb->DebugMessage('Would have used cached (image/' . $phpThumb->thumbnailFormat . ') file "' . $phpThumb->cache_filename . '" (Last-Modified: ' . gmdate('D, d M Y H:i:s', $nModified) . ' GMT), but skipping because $_SERVER[HTTP_REFERER] (' . @$_SERVER['HTTP_REFERER'] . ') is not in $phpThumb->config_nooffsitelink_valid_domains (' . implode(';', $phpThumb->config_nooffsitelink_valid_domains) . ')', __FILE__, __LINE__); } elseif ($phpThumb->phpThumbDebug) { $phpThumb->DebugTimingMessage('skipped using cached image', __FILE__, __LINE__); $phpThumb->DebugMessage('Would have used cached file, but skipping due to phpThumbDebug', __FILE__, __LINE__); $phpThumb->DebugMessage('* Would have sent headers (1): Last-Modified: ' . gmdate('D, d M Y H:i:s', $nModified) . ' GMT', __FILE__, __LINE__); if ($getimagesize = @GetImageSize($phpThumb->cache_filename)) { $phpThumb->DebugMessage('* Would have sent headers (2): Content-Type: ' . phpThumb_functions::ImageTypeToMIMEtype($getimagesize[2]), __FILE__, __LINE__); } if (preg_match('#^' . preg_quote($nice_docroot) . '(.*)$#', $nice_cachefile, $matches)) { $phpThumb->DebugMessage('* Would have sent headers (3): Location: ' . dirname($matches[1]) . '/' . urlencode(basename($matches[1])), __FILE__, __LINE__); } else { $phpThumb->DebugMessage('* Would have sent data: readfile(' . $phpThumb->cache_filename . ')', __FILE__, __LINE__); } } else { if (headers_sent()) { $phpThumb->ErrorImage('Headers already sent (' . basename(__FILE__) . ' line ' . __LINE__ . ')'); exit; } SendSaveAsFileHeaderIfNeeded(); header('Last-Modified: ' . gmdate('D, d M Y H:i:s', $nModified) . ' GMT'); if (@$_SERVER['HTTP_IF_MODIFIED_SINCE'] && $nModified == strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) && @$_SERVER['SERVER_PROTOCOL']) { header($_SERVER['SERVER_PROTOCOL'] . ' 304 Not Modified'); exit; } if ($getimagesize = @GetImageSize($phpThumb->cache_filename)) { header('Content-Type: ' . phpThumb_functions::ImageTypeToMIMEtype($getimagesize[2])); } elseif (preg_match('#\\.ico$#i', $phpThumb->cache_filename)) { header('Content-Type: image/x-icon'); } if (!@$PHPTHUMB_CONFIG['cache_force_passthru'] && preg_match('#^' . preg_quote($nice_docroot) . '(.*)$#', $nice_cachefile, $matches)) { header('Location: ' . dirname($matches[1]) . '/' . urlencode(basename($matches[1]))); } else { @readfile($phpThumb->cache_filename); } exit; } return true; }